BMW B48
| BMW B48 | |
|---|---|
 | |
| Overview | |
| Manufacturer | BMW |
| Production | 2014 – present |
| Layout | |
| Configuration | Inline-four |
| Displacement | 2.0 L (1,998 cc) |
| Cylinder bore | 82.0 mm |
| Piston stroke | 94.6 mm |
| Valvetrain | DOHC |
| Compression ratio | 11:1 |
| Combustion | |
| Turbocharger | Single twin-scroll |
| Fuel system | Direct injection |
| Fuel type | Petrol |
| Chronology | |
| Predecessor | BMW N20 |
The BMW B48 is a turbocharged inline-four petrol engine which replaced the BMW N20 and has been in production since 2014. It is part of a modular BMW engine family of 3-cylinder (B38/ B37), 4-cylinder (B48/ B47) and 6-cylinder (B58) engines,[1] which use a displacement of 500 cc (30.5 cu in) per cylinder.
Design
Compared with its N20 predecessor, the B48 uses a more undersquare design.[2] As per the N20, the block and head are made from aluminium.[3] Other features shared with the N20 include a twin-scroll turbocharger, direct injection, variable valve lift (Valvetronic) and variable valve timing (Double VANOS).[4]
Models
| Power | Torque | Years |
|---|---|---|
| 135 kW (181 hp) @ 5,000–6,500 rpm |
290 N⋅m (214 lb⋅ft) @ 1,350–4,250 rpm |
2016– |
| 141 kW (189 hp) @ 4,700–6,000 rpm |
280 N⋅m (207 lb⋅ft) @ 1,250–4,500 rpm |
2014– |
| 170 kW (228 hp) @ 5,000–6,500 rpm |
300 N⋅m (221 lb⋅ft) @ 1,250–4,800 rpm |
2015– |
| 185 kW (248 hp) @ 5,200–6,500 rpm |
350 N⋅m (258 lb⋅ft) @ 1,450–4,800 rpm | |
| 190 kW (255 hp) @ 5,000–6,500 rpm |
400 N⋅m (295 lb⋅ft) @ 1,550–4,400 rpm |
2016– |
135 kW version
When combined with the electric motor, the 330e overall output is 185 kW (248 hp) and 420 N⋅m (310 lb⋅ft)[5]
Applications:
- 2016–present F30 320i
- 2016–present F30 330e
- 2016–present F20 120i
- 2017–present G30 520i
- 2017–present G30 530e
- 2018–present G01 X3 xDrive20i
- 2019–present G20 320i
141 kW version
In the MINI Cooper S, a temporary overboost increases peak torque by 20 N⋅m (15 lb⋅ft) to 300 N⋅m (221 lb⋅ft).[6]
Applications:
- 2014–present F56 MINI Cooper S[7]
- 2015–present F22 220i
- 2016–present F48 X1 20i
- 2017–present F39 X2 sDrive20i
- 2018–present G29 Z4 sDrive20i
170 kW version
- 2014–present F56 MINI JCW Hardtop and JCW Cabrio (320 Nm)[8]
- 2017–present F56 MINI JCW Clubman and JCW Countryman ALL4 (350 Nm)
- 2015–present F22 225i
- 2016–present F48 X1 25i
- 2017–present F39 X2 sDrive28i
185 kW version
- 2015–present F30/F31 330i
- 2016–present G30 530i
- 2016–present F22 230i[9]
- 2016–present F32/F33/F36 430i
- 2018–present G01 X3 xDrive30i
- 2018–present X4 xDrive30i
- 2018–present G29 Z4 sDrive30i
190 kW version
- 2016–present G11 730i/730Li
- 2017–present G11 740e xDrive/740Le xDrive[10] (combined with 82 kW electric motor for total output of 240 kW)
- 2017–present G32 630i
- 2019–present G20 330i
References
- ^ "BMW modular engines: B37, B38, B47 and B48". www.bmwblog.com. Retrieved 10 May 2017.
- ^ "Watch out for the B's - Comparing the upcoming B48 2.0 liter turbo four-cylinder to the N20 it will replace". www.bimmerboost.com. Retrieved 10 May 2017.
- ^ "2016 BMW X1 first drive review". www.caranddriver.com. Retrieved 10 May 2017.
- ^ "BMW B48 Four Cylinder Turbocharged Engines". www.unixnerd.demon.co.uk. Retrieved 16 May 2017.
- ^ http://www.bmw.com/com/en/newvehicles/3series/sedan/2015/showroom/technical_data.html#m=330e
- ^ "BMW's new B48 2.0 litre four-cylinder TwinPower Turbo engine to produce up to 255 hp and 400 Nm". www.paultan.org. Retrieved 16 May 2017.
- ^ "MINI's Prince Engine is Dead- enter the B37 & B48". www.motoringfile.com. Retrieved 16 May 2017.
- ^ http://www.autocar.co.uk/car-news/new-cars/future-mini-jcw-models-get-new-230bhp-petrol-engine
- ^ "The new 2017 BMW 2 Series now featuring the latest generation of BMW TwinPower Turbo engines". Press.bmwgroup.com. 2017-05-17. Retrieved 2017-09-01.
- ^ "2017 BMW 740e xDrive Plug-In Hybrid". www.caranddriver.com. Retrieved 31 July 2017.